body{margin:0;font-family:Inter,Arial;background:#f8fafc;color:#0f172a}
header{background:#020617;color:#fff}
.container{max-width:1100px;margin:auto;display:flex;justify-content:space-between;align-items:center;padding:20px}
nav a{color:#fff;margin:0 10px;text-decoration:none}
nav button{margin-left:10px}
.hero{text-align:center;padding:100px 20px;background:linear-gradient(135deg,#020617,#1e293b);color:#fff}
.btn{display:inline-block;margin-top:20px;padding:14px 28px;background:#2563eb;color:#fff;border-radius:6px;text-decoration:none}
.content{max-width:900px;margin:auto;padding:60px 20px}
.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:20px}
.card{background:#fff;padding:30px;border-radius:10px;box-shadow:0 10px 30px rgba(0,0,0,.05)}
footer{text-align:center;padding:30px;background:#020617;color:#fff}